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 Precision tooling
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Since its foundation, Mitsui High-tec Inc. has produced a wide range of tooling (kanagata), specializing in those for motor cores and IC leadframes.
Electric motor cores (rotors and stators), automobile components, coins, IC leadframes, resin injection molding and so on: Mitsui's stamped products and precision tooling are used all over the world.
It is the basic policy of our company to supply "products of worth satisfying customers" and, for the purpose of delivering better products, we have constructed and started the operation of a brand-new die-manufacturing factory capable of keeping constant temperature, constant humidity and cleanliness.
 Details of tool and die manufacturing factory
 Proposals for stamped manufacturing
 Improving productivity by replacing machining labor with mechanical stamping
Tool and die product lineup
 Mitsui's world-class facilities insure not only better quality through environmental control; Mitsui's plant is efficient and organized to gain all benefits from economy of scale, just-in-time logistics, and ownership-based control methodologies to insure each job is done right the first time.(Details)
Motor core dies
 From the designing and manufacturing of dies to the stamping of cores, Mitsui's integrated global production system guarantees "top quality" and "low cost". (Details)
Leadframe dies
 Leadframes have complicated shapes and, for punching such complicated shapes, some punches are thinner than a human hair and require the keenest care in machining and assembling. It is only our long-accumulated technology that enables such difficult work. (Details)
* IC leadframe toolings are used for in-house stamping and are not sold as separate entities.
Mold dies
 Mitsui internally produces stamping tools for high-volume production of IC leadframes and the injection mold tooling used in the assembly of semiconductors.
In assembling an IC leadframe, a mold die is necessary for encapsulating the semiconductor chips. The extension of our motor core and leadframe tooling capabilities allows us to respond to customers' requirements in a swift and sophisticated manner by internal production of the mold dies.
Trim and form dies
 We are also engaged in the production of "trim and form" dies that form the outer leads of an IC package to enable final mounting on the circuit board. By the combination of punching, sector-bending, cam-bending and other techniques, we can accommodate almost any shape. In addition, we also market simplified presses for the low-volume stamping. Please consult with us when you consider the introduction of said press.
Appearance of a simplified press
Other type of stamping tools
Our stamping technology includes applications for hard materials as well. We are confident that our sub-micron order precision tooling will meet your needs with excellent performance, trouble-free operation, and easier maintenance.
Typical applications
- Ceramic punching dies: For manufacturing various electronic parts
- Food package punching dies: For manufacturing pouched packages
(for refreshing drinks, dairy drinks, etc.)
- Thin stainless steel sheet punching dies: For HDD pickup, etc.
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